Class of 2022 - Graduation Timeline 

June 16th: Senior Celebration ~ Formerly known as baccalaureate, the Graduation Committee works with the seniors to plan a memorable event to celebrate their years at IS. It is less formal and more personal than the graduation ceremony and features slideshows, student speeches and entertainment, and is usually the favorite event of the seniors. Senior Celebration will be held in the International School gym at 7pm.

June 17th: Commencement/Graduation ~ School sponsored traditional graduation ceremony with caps and gowns. Graduation will be held at the Bellevue High School outdoor stadium at 7pm.

June 17th: All-Night Grad Party ~ This is the overnight party that takes place immediately following the graduation ceremony. All seniors get on busses and are taken to a surprise location with lots of activities, food and fun. They stay up all night celebrating in a safe way and arrive back at IS around 5 am on June 18th. Register and purchase your ticket below!




!!! DEADLINE FOR TICKETS ~ May 1st !!!


A tradition at International School (and most local high schools), the 2022 All-Night Grad Party — a senior year highlight — is held on the evening of graduation and provides the Seniors with an opportunity for a safe, drug and alcohol-free FUN celebration with non-stop entertainment all night long. It is one of the last opportunities to be together as a class.

The 2022 All-Night Grad Party begins with organized bus transportation that takes the graduates to surprise destinations with incredible entertainment, food and music, and returns them to the school early the following morning.

Students who have attended past All-Night Grad Parties say, “You do not want to miss this!” Typically, all seniors from International School attend.

The 2022 All-Night Grad Party is funded through class fundraising and ticket sales. Tickets are $250.00 per student and include transportation to multiple fun-filled, activity-packed SECRET venues, entertainment, activities, games, prizes, dinner, breakfast, and FUN, FUN, FUN all night long! Most importantly, this is a safe and supervised event with NO alcohol or drugs. 
Please note that ALL students must ride the bus to and from the party and may not leave early.

New This Year: the ticket price also includes a beautiful hydrangea for each senior to be used to decorate the stage at Senior Celebration and Graduation, and then given to each senior to take home and plant in their yard.

Full and partial scholarships are available!
If you or someone you know is unable to afford this event, please contact High School Counselor Colleen Courtney to apply at All information is confidential. We want all seniors to have the opportunity to attend!

Refund Policy

There will be no refunds given due to the nature of this event. All venues are secured many months in advance and are non-refundable. 


Step 1:

CLICK HERE to register -- complete the Google Doc (required).

  • In the Google Doc, you will acknowledge that you have read and will abide by these terms and conditions. You will sign this agreement at check-in for the All-Night Grad Party.

Step 2Complete Form

CLICK HERE to download the Permission to Attend/Medical Release/Hold Harmless Agreement (required)

  • Please print, sign and email completed agreement to If the student will not be 18 on the date of the All-Night Grad Party, a parent/guardian must also sign.

Step 3Make Payment (required)

Tickets are $250 per student. You may pay using Zelle: Please include the student’s name and ‘all-night party’ in the memo. If you would prefer to pay by check, please make it out to ISPTSA and have your student bring it to the school office. If you have any trouble with the forms or payment, please email

If you would like to donate to a student in need, simply add to your payment. THANK YOU!